CVE-2026-44509
Rsync: Symlink races on path-based syscalls
Description
Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2026-43619. Reason: This candidate is a duplicate of CVE-2026-43619. Notes: All CVE users should reference CVE-2026-43619 instead of this candidate.
INFO
Published Date :
July 20, 2026, 9:16 p.m.
Last Modified :
July 21, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Rsync to version 3.4.3 or later.
- Verify rsync daemon configuration (use chroot=yes recommended).
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-44509 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-44509 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by [email protected]
Jul. 21, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Changed Description Rsync is a file-copying tool that uses a delta-transfer algorithm to synchronize remote and local files. In versions prior to 3.4.3, previous bug fixes for symlink races in open() calls missed races in other path based system calls like chmod() and chown(). For rsync daemons with "use chroot = no" this allows an attacker with local filesystem access to change permissions, ownership or timestamp on a file outside the exported module. This issue is fixed in version 3.4.3. Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2026-43619. Reason: This candidate is a duplicate of CVE-2026-43619. Notes: All CVE users should reference CVE-2026-43619 instead of this candidate. Removed CVSS V3.1 GitHub, Inc.: AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Removed CWE GitHub, Inc.: CWE-59 Removed CWE GitHub, Inc.: CWE-367 Removed CWE GitHub, Inc.: CWE-863 Removed Reference GitHub, Inc.: https://github.com/RsyncProject/rsync/security/advisories/GHSA-4h9m-w5ff-j735 Removed Affected [{'vendor': 'RsyncProject', 'product': 'rsync', 'versions': [{'status': 'affected', 'version': '< 3.4.3'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 21, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-44509', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-21T13:51:33.131364Z'} -
New CVE Received by [email protected]
Jul. 20, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'RsyncProject', 'product': 'rsync', 'versions': [{'status': 'affected', 'version': '< 3.4.3'}]}] Added Description Rsync is a file-copying tool that uses a delta-transfer algorithm to synchronize remote and local files. In versions prior to 3.4.3, previous bug fixes for symlink races in open() calls missed races in other path based system calls like chmod() and chown(). For rsync daemons with "use chroot = no" this allows an attacker with local filesystem access to change permissions, ownership or timestamp on a file outside the exported module. This issue is fixed in version 3.4.3. Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-59 Added CWE CWE-367 Added CWE CWE-863 Added Reference https://github.com/RsyncProject/rsync/security/advisories/GHSA-4h9m-w5ff-j735